90003289 has 2 divisors, whose sum is σ = 90003290. Its totient is φ = 90003288.

The previous prime is 90003259. The next prime is 90003317. The reversal of 90003289 is 98230009.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89019225 + 984064 = 9435^2 + 992^2 .

It is a cyclic number.

It is not a de Polignac number, because 90003289 - 2⁷ = 90003161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90003289.

It is not a weakly prime, because it can be changed into another prime (90003239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45001644 + 45001645.

It is an arithmetic number, because the mean of its divisors is an integer number (45001645).

Almost surely, 2^90003289 is an apocalyptic number.

It is an amenable number.

90003289 is a deficient number, since it is larger than the sum of its proper divisors (1).

90003289 is an equidigital number, since it uses as much as digits as its factorization.

90003289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 90003289 is about 9487.0063244419. The cubic root of 90003289 is about 448.1459336041.

The spelling of 90003289 in words is "ninety million, three thousand, two hundred eighty-nine".